Yeah I got one a few weeks ago as well. I like the light and have no real nitpicks with it, however I have an Inova T4 that I use for work as an automechanic. The Fenix is much brighter and fully submersible while the Inova has easy rechargability going for it.
And now that I think about it the only complaint I have is that this would make a better EDC light if the hotspot was expanded and less focused, or if Fenix made a beam diffuser for it.
I've also got a Jetbeam RRT-2 with OP reflector on the way that I will compare it to when that shows up. Suffice to say I like the selector ring user interface much more than combinations of button pushing, that way If i decide to mount it on my AR-15 I can just set what level of light I want and just push the button if something goes bump in the night without having to worry about what mode it will light up in.
As far as overall build quality, I like it better than the Surefire E2L that is at Surefire rightnow for warranty repair (intermittant operation). And the lens seems better protected than the one on my T4.
If I choose to use it as worklight then it will really see some abuse since drops to concrete from 6'plus are common and regular. Those drops by the way have killed at least 3 Inova T4's so far. All of which were replaced under warranty, the latest generation has been holding up well.